91792275 has 12 divisors (see below), whose sum is σ = 151763352. Its totient is φ = 48955840.

The previous prime is 91792223. The next prime is 91792277. The reversal of 91792275 is 57229719.

It is not a de Polignac number, because 91792275 - 2²⁶ = 24683411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91792277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 611874 + ... + 612023.

It is an arithmetic number, because the mean of its divisors is an integer number (12646946).

Almost surely, 2^91792275 is an apocalyptic number.

91792275 is a deficient number, since it is larger than the sum of its proper divisors (59971077).

91792275 is a wasteful number, since it uses less digits than its factorization.

91792275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223910 (or 1223905 counting only the distinct ones).

The product of its digits is 79380, while the sum is 42.

The square root of 91792275 is about 9580.8285132341. The cubic root of 91792275 is about 451.0957248674.

The spelling of 91792275 in words is "ninety-one million, seven hundred ninety-two thousand, two hundred seventy-five".